Wavelength-tunable semiconductor laser
    5.
    发明授权
    Wavelength-tunable semiconductor laser 失效
    波长可调半导体激光器

    公开(公告)号:US4873691A

    公开(公告)日:1989-10-10

    申请号:US224726

    申请日:1988-07-27

    摘要: A wavelength-tunable semiconductor laser having an active part and an external waveguide part is disclosed. The external waveguide part has a diffraction grating, such as a distributed Bragg reflector, and a quantum well structure optically coupled to the diffraction grating, together with electrodes for impressing an electric field to the quantum well structure. By applying the electric filed to the quantum well structure, the refractive index in the optically coupled diffraction grating/quantum well structure, and light oscillation wavelength in the external waveguide part, can be varied.

    摘要翻译: 公开了一种具有有源部分和外部波导部分的波长可调谐半导体激光器。 外部波导部分具有衍射光栅,例如分布式布拉格反射器,以及光学耦合到衍射光栅的量子阱结构,以及用于向量子阱结构施加电场的电极。 通过将电场施加到量子阱结构,可以改变光耦合衍射光栅/量子阱结构中的折射率和外部波导部分中的光振荡波长。

    MICROCONTACT PROBER
    6.
    发明申请

    公开(公告)号:US20120090056A1

    公开(公告)日:2012-04-12

    申请号:US13378286

    申请日:2010-05-26

    IPC分类号: G01Q30/02

    摘要: The stress due to contact between a probe and a measurement sample is improved when using a microcontact prober having a conductive nanotube, nanowire, or nanopillar probe, the insulating layer at the contact interface is removed, thereby the contact resistance is reduced, and the performance of semiconductor device examination is improved. The microcontact prober comprises a cantilever probe in which each cantilever is provided with a nanowire, nanopillar, or a metal-coated carbon nanotube probe projecting by 50 to 100 nm from a holder provided at the fore end and a vibrating mechanism for vibrating the cantilever horizontally with respect to the subject. The fore end of the holder may project from the free end of the cantilever, and the fore end of the holder can be checked from above the cantilever.

    摘要翻译: 当使用具有导电纳米管,纳米线或纳米柱探针的微探针探针时,探针和测量样品之间的接触引起的应力得到改善,接触界面处的绝缘层被去除,从而降低了接触电阻,并且性能 的半导体器件检查得到改进。 微接触探针包括悬臂探针,其中每个悬臂设置有从设置在前端的保持器突出50至100nm的纳米线,纳米柱或金属涂覆的碳纳米管探针和用于水平振动悬臂的振动机构 关于这个问题。 支架的前端可以从悬臂的自由端突出,并且可以从悬臂上方检查支架的前端。

    GRAPHENE CIRCUIT BOARD HAVING IMPROVED ELECTRICAL CONTACT BETWEEN GRAPHENE AND METAL ELECTRODE, AND DEVICE INCLUDING SAME
    7.
    发明申请
    GRAPHENE CIRCUIT BOARD HAVING IMPROVED ELECTRICAL CONTACT BETWEEN GRAPHENE AND METAL ELECTRODE, AND DEVICE INCLUDING SAME 失效
    具有改善的石墨和金属电极之间的电气接触的石墨电路板和包括其的装置

    公开(公告)号:US20110198558A1

    公开(公告)日:2011-08-18

    申请号:US13013984

    申请日:2011-01-26

    IPC分类号: H01L29/06

    摘要: A circuit board having a graphene circuit according to the present invention includes: a base substrate; a patterned aluminum oxide film formed on the base substrate, the patterned aluminum oxide film having an average composition of Al2-xO3+x (where x is 0 or more), the patterned aluminum oxide film having a recessed region whose surface has one or more cone-shaped recesses therein; a graphene film preferentially grown only on the patterned aluminum oxide film, the graphene film having one or more graphene atomic layers, the graphene film having a contact region that covers the recessed region, the graphene film growing parallel to a flat surface of the recessed region and parallel to an inner wall surface of each cone-shaped recess of the recessed region; and a patterned metal film, a part of the patterned metal film covering and having electrical contact with the contact region, the patterned metal film filling each recess covered by the graphene film.

    摘要翻译: 根据本发明的具有石墨烯电路的电路板包括:基底; 形成在基底基板上的图案化氧化铝膜,图案化的氧化铝膜具有平均组成为Al 2-x O 3 + x(其中x为0或更大)的图案化氧化铝膜,图案化的氧化铝膜具有凹陷区域,其表面具有一个或多个 锥形凹槽; 优选仅在图案化的氧化铝膜上生长的石墨烯膜,所述石墨烯膜具有一个或多个石墨烯原子层,所述石墨烯膜具有覆盖所述凹陷区域的接触区域,所述石墨烯膜平行于所述凹陷区域的平坦表面生长 并且平行于凹陷区域的每个锥形凹部的内壁表面; 以及图案化的金属膜,所述图案化的金属膜的一部分覆盖并与所述接触区域电接触,所述图案化金属膜填充由所述石墨烯膜覆盖的每个凹部。

    Field emission electron gun and electron beam applied device using the same
    8.
    发明授权
    Field emission electron gun and electron beam applied device using the same 有权
    场发射电子枪和电子束施加装置使用相同

    公开(公告)号:US07732764B2

    公开(公告)日:2010-06-08

    申请号:US11831989

    申请日:2007-08-01

    摘要: The object of the present invention is to enable the optical axis of an electron beam of a field emission electron gun mounting thereon an electron gun composed of a fibrous carbon material to be adjusted easily. Moreover, it is also to obtain an electron beam whose energy spread is narrower than that of the electron gun. Further, it is also to provide a high resolution electron beam applied device mounting thereon the field emission electron gun. The means for achieving the objects of the present invention is in that the fibrous carbon material is coated with a material having a band gap, in the field emission electron gun including an electron source composed of a fibrous carbon material and an electrically conductive base material for supporting the fibrous carbon material, an extractor for field-emitting electrons, and an accelerator for accelerating the electrons. Moreover, it is also to apply the field emission electron gun to various kinds of electron beam applied devices.

    摘要翻译: 本发明的目的是使得能够容易地调整由其上安装有由纤维状碳材料构成的电子枪的场发射电子枪的电子束的光轴。 此外,还要获得能量扩散比电子枪窄的电子束。 此外,还提供安装在其上的高分辨率电子束施加装置的场致发射电子枪。 用于实现本发明的目的的手段在于,在场发射电子枪中包括具有带隙的材料的纤维状碳材料包括由纤维状碳材料构成的电子源和用于 支撑纤维状碳材料,用于场发射电子的提取器和用于加速电子的加速器。 此外,还将场致发射电子枪应用于各种电子束施加装置。